\begin{tikzpicture}[scale=0.7]
	\tkzDefPoints{0/0/A, 3/0/B, 2/0/C, 2/3/D}
	\tkzDrawSegments(A,B  C,D)
	\tkzLabelPoints[above](D)
	\tkzLabelPoints[below](A,B,C)
\end{tikzpicture}

